Global Patent Index - EP 2022987 A1

EP 2022987 A1 2009-02-11 - Impeller and method of producing the same

Title (en)

Impeller and method of producing the same

Title (de)

Laufrad und Herstellungsverfahren dafür

Title (fr)

Turbine et son procédé de fabrication

Publication

EP 2022987 A1 (EN)

Application

EP 07014819 A

Priority

EP 07014819 A

Abstract (en)

A method of producing an impeller by forming an impeller blank (100) and subsequently machining the impeller blank (100), characterised in that at least two dissimilar materials are joined in the impeller blank (100) before the machining.

IPC 8 full level (invention and additional information)

F04D 29/28 (2006.01); F04D 29/02 (2006.01); F04D 29/22 (2006.01)

CPC (invention and additional information)

F04D 29/023 (2013.01); B23K 15/0093 (2013.01); B23K 26/32 (2013.01); B23K 26/323 (2013.01); B23P 15/006 (2013.01); F01D 5/34 (2013.01); F04D 29/284 (2013.01); B23K 2103/10 (2018.08); B23K 2103/14 (2018.08); F05D 2230/233 (2013.01); F05D 2230/234 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

EP 2022987 A1 20090211; WO 2009015974 A1 20090205

INPADOC legal status


2010-02-24 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20090812

2009-11-26 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2009-10-14 [AKX] PAYMENT OF DESIGNATION FEES

2009-02-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS